<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索 -->

      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" clearable v-model="queryInfo.query" @clear="getUserlist">
            <el-button slot="append" icon="el-icon-search" @click="getUserlist"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- 可以通过scope.row拿到这行的是数据
            {{scope.row}}-->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-tooltip effect="dark" content="修改列表" placement="top" :enterable="false">
              <el-button type="primary" @click="Edit(scope.row.id)" icon="el-icon-edit" size="mini"></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-tooltip effect="dark" content="删除列表" placement="top" :enterable="false">
              <el-button
                type="danger"
                @click="removeUserById(scope.row.id)"
                icon="el-icon-delete"
                size="mini"
              ></el-button>
            </el-tooltip>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1,2,5,10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" @close="addDialogClosed" :visible.sync="addDialogVisible" width="50%">
      <!-- 内容主体区域 -->
      <el-form :model="addForm" :rules="addFormrules" ref="ruleFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改对话框 -->
    <el-dialog title="修改" @close="editFromClosed" :visible.sync="editDialogVisible" width="30%">
      <el-form :model="editForm" :rules="editFromrules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUsers">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      @close="setRoleDialogClosed"
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="30%"
    >
      <div>
        <p>当前用户:{{ userinfo.username}}</p>
        <p>当前角色:{{ userinfo.role_name}}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      addDialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      editFromrules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, message: '邮箱格式不正确，请重新输入', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, message: '手机号码不正确，请重新输入', trigger: 'blur' }
        ]
      },
      // 添加用户表单验证规则对象
      addFormrules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名在6~15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, message: '邮箱格式不正确，请重新输入', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, message: '手机号码不正确，请重新输入', trigger: 'blur' }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoledialogVisible: false,
      // 需要被分配角色的用户信息
      userinfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已选中角色Id值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserlist()
  },
  methods: {
    async getUserlist () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      console.log(this.queryInfo.query)
      // console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userlist = res.data.users
      this.total = res.data.total
    },

    //   监听pagesize改变事件
    handleSizeChange (newSize) {
    // console.log(newSize)
      this.queryInfo.pagesize = newSize
      console.log(this.queryInfo.pagesize)
      this.getUserlist()
    },
    // 监听页码值改变
    handleCurrentChange (newpage) {
      this.queryInfo.pagenum = newpage
      this.getUserlist()
    },
    // 监听swith开关状态的改变
    async userStateChanged (userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.ruleFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser () {
      // 点击确定按钮，添加新用户
      // 调用validate进行表单验证
      this.$refs.ruleFormRef.validate(async valid => {
        if (!valid) return this.$message.error('请填写完整用户信息')
        // 发送请求完成添加用户的操作
        const { data: res } = await this.$http.post('users', this.addForm)
        // console.log(res)
        // 判断如果添加失败，就做提示
        if (res.meta.status !== 201) { return this.$message.error('添加用户失败') }
        // 添加成功的提示
        this.$message.success('添加用户成功')
        // 关闭对话框
        this.addDialogVisible = false
        // 重新请求最新的数据
        this.getUserlist()
      })
    },
    // 展示编辑用户的对话框
    async Edit (id) {
      this.editDialogVisible = true
      // console.log(id)
      const { data: res } = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) { return this.$message.error('查询失败哦') }
      // 添加成功的提示
      // console.log(res)
      this.editForm = res.data
      // console.log(this.editForm)
    },
    // 编辑用户表单关闭重置
    editFromClosed () {
      this.$refs.editFormRef.resetFields()
    },
    editUsers () {
      // 点击确定按钮，添加新用户
      // 调用validate进行表单验证
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return this.$message.error('请填写完整用户信息')
        // 发送请求完成添加用户的操作
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        // console.log(res)
        // 判断如果添加失败，就做提示
        if (res.meta.status !== 200) { return this.$message.error('更新用户失败') }
        // 关闭对话框
        this.editDialogVisible = false
        // 重新请求最新的数据
        this.getUserlist()
        // 添加成功的提示
        this.$message.success('添加用户成功')
      })
    },
    async removeUserById (id) {
    // 弹窗询问用户是否删除数据
      const confirmRes = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })

      // 如果确认删除，则返回值为字符串
      // 如果用户取消删除，返回字符串cancel
      // console.log(confirmRes)
      if (confirmRes !== 'confirm') {
        return this.$message.info('取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) { return this.$message.error('删除用户失败') }
      this.$message.success('删除用户成功')
      this.getUserlist()
    },
    // 展示分配角色的对话框
    async setRole (userinfo) {
      this.userinfo = userinfo

      // 在展示对话框之前,获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) { return this.$message.error('获取角色列表失败') }
      this.rolesList = res.data

      this.setRoledialogVisible = true
    },
    async saveRoleInfo () {
      // 点击按钮,分配角色
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色!')
      }
      const { data: res } = await this.$http.put(`users/${this.userinfo.id}/role`, {
        rid: this.selectedRoleId
      })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserlist()
      this.setRoledialogVisible = false
    },
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userinfo = {}
    }
  }

}
</script>

<style lang="less" scoped>

</style>
